How popular is Kaelah?

Kaelah is an uncommonly occurring first name for females. Kaelah is an uncommon surname too for both adults and children. (2000 U.S. Census)

Which version is better?

with its source forms and related girl names. Calla(#1565 via latest list), Cayla(#1731), Caylie, Kaela, Kaila(#1558), Kailah, Kayla(#115), Kaylah(#1684), Kayle, Kaylie(#551), Kaylin(#619), Kaylyn(#1270) and Keyla(#807) are the prominent varying forms of Kaelah (outside Top 2000) ranked in the Top 2000. Adoption of these relations of Kaelah was more pronounced 20 years ago (adoption of 1.5%) and is now significantly reduced (adoption 0.28%, down 81.6%), with forms such as Kaila becoming less in vogue. Kayla has been the most recognizable form, though Keyla has gained in popularity. (2015 Birth Statistics)